215results about How to "Prevent coalescence" patented technology

The invention relates to a method for preparing edible grease gel with a Pickering emulsion as a template. Firstly, an oil-in-water type emulsion with soybean isolate protein nanoparticles as an emulsifier and xanthan gum as a gel enhancer is prepared, moisture in the emulsion is removed with a drying means, and the edible grease gel containing little water is obtained. By comparison with a traditional emulsion, particles can be adsorbed to an oil/water interface of the oil-in-water type emulsion irreversibly, accordingly, coalescence and flocculation of liquid drops and curing of Ostwald are effectively inhibited, and the emulsion can keep stable for months or years. With the adoption of the preparation method, grease which does not contain trans-fatty acids and low-content saturated fatty acids can be obtained and can replace part of solid or semi-solid fat in food. The method has the advantages that operation is simple and convenient, raw materials are safe and environment-friendly and the like.

A feed-dispersion system for hydrocarbon feeds of fluid catalytic cracking units is described, which comprises:

• • a feed-injection system made up of two concentric conduits, where the atomization fluid flows through the inner conduit, while the liquid feed flows through the annular space formed by the outer surface of the inner conduit and the inner surface of the outer conduit;
  • an atomization unit having nozzles arranged in rows, with one row having central nozzles connected to the inner conduit for atomization fluid, and two or more rows of side nozzles, connected to the outer feed conduit, the central nozzles and side nozzles of the atomization unit being geometrically placed so that the energy of the atomization fluid is fully transferred by contact to the flow of feed, this resulting in the complete atomization of the feed;
  • a mixing chamber formed by the edges of the central nozzles, the dimensions of which are able to prevent the coalescence of the formed oil droplets.

A reflective film used as a reflective electrode or a reflector, comprising an Ag-based alloy containing rare earth metals. The reflective film has high reflectivity and high durability.

The method of forming an image formed of low viscosity ink on a recording medium comprises ejecting the low viscosity ink from a printer head in the form of droplets onto an intermediate transfer medium to form the image, partially curing the image on the intermediate transfer medium, transferring the partially cured image onto the recording medium, and further curing the partially cured image on the recording medium to create a hardened image.

Disclosed is a conductive composition useful for the preparation of electrically conductive structures on a substrate comprising a plurality of metal particles, a plurality of glass particles and a vehicle comprising at least one cellulose derivative and at least one solid organopolysiloxane resin dissolved in a mutual organic solvent. The solid organopolysiloxane resin acts as adhesion promoter and assists in stably dispersing the metal and glass particles to avoid an agglomeration of such particles without degrading the rheological properties. From such conductive compositions uniform well adherent electrically conductive structures essentially free from defects in the form of cracks, bubbles or coarse particulates can be prepared on dielectric or semiconductor substrates such as silicon wafers in an efficient and cost-saving manner e.g. by screen printing, drying and sintering while inducing only low warping of the substrate. These characteristics render said conductive compositions particularly useful for the fabrication of electrodes of a semiconductor solar cell helping to increase the cell conversion efficiency.

The present invention relates to a saponin-containing composite type hydrate anti-agglomerant, which comprises a saponin plant extract and an auxiliary anti-agglomerant. Compared to the existing anti-agglomerant, the saponin-containing composite type hydrate anti-agglomerant of the present invention has the following characteristics that: an initial generation state of a hydrate can be effectively controlled so as to effectively avoid possibly-generated hydrate aggregation when water content is high, such that dynamic control of the hydrate is easily achieved, it is ensured that hydrate crystals exist in an oil-gas-water multiphase mixing transportation pipeline in a small particle form, and accumulation and deposition phenomena can not be generated so as to effectively solve the flow safety assurance problem of the multiphase mixing transportation pipeline; the saponin plant extract in the hydrate anti-agglomerant is a nature plant extract, does not have toxicity, and is easily biodegraded, and the selected raw materials of the auxiliary anti-agglomerant are non-toxic; and the hydrate anti-agglomerant has characteristics of no toxicity, economy, environment protection, good action effect, uniform generated hydrate particle distribution, and the like.

The invention discloses a PU elastic paint, which comprises a main paint, a curing agent and a diluent, wherein the main paint comprises 27 to 35 percent of elastic resin, 0.2 to 1 percent of drier, 1 to 3 percent of elastic powder, 5 to 7 percent of matting agent, 50 to 60 percent of solvent and 1 to 4 percent of organic silicon assistant. The elastic paint disclosed by the invention is easy in construction, the spraying thickness exerts little affect on the luster of the paint film, and the paint film offers a full handfeel and has a soft luster and uniform chroma.

A process is provided for making dry, micronized particles of an agent, such as a drug. The method includes (a) dissolving a macromolecular material, preferably a polymer, in an effective amount of a solvent, to form a solution; (b) dissolving or dispersing the agent in the solution to form a mixture; (c) freezing the mixture; and (d) drying by vacuum the mixture to form solid particles of the agent dispersed in solid macromolecular material. The micronization in this process occurs directly in a macromolecular matrix and hardening of the particles of agent by solvent removal takes place by lyophilization of the bulk matrix, which stabilizes the drug particles during hardening and prevents coalesence, thereby resulting in smaller final drug particles. The method is particularly preferred for protein agents. The process can be used in conjunction with a standard microencapsulation technique, typically following separation of the agent from the macromolecular matrix. The process yields microparticles having a homogenous size distribution, preferably less than 2 μm, and more preferably less than 1 μm, in size. The microparticles have well defined, predictable properties, which is particularly critical in drug delivery applications.

The invention relates to andrographolide ground suspending liquid, a preparation method thereof, and the application of pharmaceutical preparation, which belongs to the field of pharmaceutical preparation. The preparation method comprises the steps of adding andrographolide into hydrophilic accessory solution with certain concentration, and grinding the andrographolide in a basket grinder to prepare suspending liquid with particle sizes smaller than 3000 nm. Liquid layers of pharmaceutical suspending liquid are laminated onto blank pellet cores with certain particle size range, to prepare andrographolide immediate-release pellets. After grinding, by reducing pharmaceutical particle sizes, increasing particle surface areas and improving the wettability of pharmaceutical particles, the dissolution in vitro of the drug is improved, and hydrophilic carriers are adopted to effectively prevent the aggregation of pharmaceutical particles so as to improve the stability of the pharmaceutical preparation. The preparation method is simple and easy for industrialized production, and the dissolving-out speed of the prepared andrographolide immediate-release pellets is high, so that the bioavailability is obviously improved.

The invention discloses an acetylene-hydrochlorinated low-content gold compound catalyst, particularly a nonmerculic catalyst which is suitable for synthesis of chloroethylene through an acetylene hydrochlorination reaction. The catalyst comprises carrier active carbon, a main catalysis element and auxiliary elements A and B, wherein the content of the carrier active carbon is 10,000 parts, the main catalysis element is thiosulfate of gold with the content of 1-120 parts, the auxiliary element A is thiosulfate of silver with the content of 50-1,000 parts, the auxiliary element B is alkali metal compound and a mixture of the alkali metal compounds with the content of 50-1,000 parts. According to the acetylene-hydrochlorinated low-content gold compound catalyst disclosed by the invention, the content of gold in the prepared gold compound catalyst is low; the cost of noble metal catalyst is remarkably reduced; the prepared gold compound catalyst is a good-activity, strong-stability and high-selectivity novel nonmerculic catalyst; and the acetylene-hydrochlorinated low-content gold compound catalyst has the advantages of simple production process, short production period and environment-friendliness.

A platinum-carbon electrocatalyst material comprising a carbon support having a minimum BET surface area of 1000 m²/g, a nitrogen content of at least 2.5 weight percent, which is present in the form of pyridine, pyridone or pyrrole, a phosphorous content of at least 3 weight percent, which is present in the form of phosphate and phosphonate, and a plurality of platinum nanoparticles dispersed on the carbon support having a maximum average particle diameter of 1.5 nm.

This invention relates to a method for preparing composite active grinding aid for slag. The composite active grinding aid is composed of: triethanolamine 10-40 wt.%, polycarboxylic acid water reducer 10-40 wt.%, and saturated solution of calcium hydroxide 20-50 wt.%. The method comprises: mixing the raw materials, and activating by magnetization equipment. The composite active grinding aid can improve the fineness and activity of slag, increase grinding efficiency by 10-20%, and increase 3-day strength by 2-3 MPa and 28-day strength by 4-8 MPa. Besides, the composite active grinding aid has such advantages as good grinding effect, low energy consumption and simple production process.

The invention discloses a cement composite grinding aid which is characterized by comprising the following components in parts by weight: 10-30 parts of polyol amine, 10-30 parts of polyol, 5-15 parts of molasses, 5-15 parts of lignosulphonate, 2-6 parts of sodium metasilicate pentahydrate, 3-7 parts of sodium hexametaphosphate and 20-30 parts of water. The cement composite grinding aid disclosed by the invention is stable in raw material source, environmental-friendly, low in toxicity and easy to produce, and ensures that the components achieve preferable synergistic effect by confirming the components and a content range, thus optimizing the efficacy of a powder grinding process and improving the power granule distribution and morphology of cement without adverse effect on cement quality. The cement composite grinding aid disclosed by the invention has the advantages of preferably increasing the yield increase and enhancing the cement quality and has the effects of saving the electricity consumption, improving the powder efficiency and the cement strength, reducing the free calcium oxide contained in the cement and enhancing the early strength and later strength of the cement.

The method is characterised in that the thermal energy necessary for thermolysis of the waste carried out in the absence of air is provided by a heating mass, comprising steel balls (9), running in the furnace (1) co-currently with the waste. The method may be applied to household waste, sewage work residues, hospital wastes, wastes of risk to the agro-food industry and in a general manner to all wastes containing organic matter be it of urban, agricultural or industrial origin.

A nanogranular thin film consisting of nonmagnetic matrix and ferromagnetic fine particles in nano scale is improved to enhance the thermal stability and the S/N ratio. The ferromagnetic fine particles consist of (FeaCo1-a)1-xPtx, (0.3<=x<=0.7, 0.1<=x<=1), (FeaCo1-a)1-xPdx, (0.3<=x<=0.7, 0.1<=x<=1) or (FeaCo1-a)1-x(PtbPd1-b)x, (0.3<=x<=0.7, 0.1<=x<=1, and 0<b<1).

The invention relates to a method for producing crystals of cefadroxil monohydrate, comprising the following steps: adding an N, N-dimethyl formamide solvent compound of cefadroxil to a mixed solvent of N, N-dimethyl formamide and water, wherein the mass ratio of the cefadroxil solvent compound to the mixed solvent is 1:1-1:2, stirring to obtain a suspending liquid, and keeping the temperature at15-30 DGE C and the pH value of the solution at 6.0-7.5 during feeding; after the cefadroxil solvent compound is totally changed into the cefadroxil monohydrate, reducing the pH value of the suspending liquid to 4.5-5.0 within 1-20 minutes, keeping the temperature at 10-18 DEGC, and stirring for crystal cultivation for 10-90 minutes; and filtering, washing and drying after crystal cultivation is finished to obtain a product, the square platy crystal-form cefadroxil monohydrate. The square platy crystal-form cefadroxil monohydrate obtained by the method has uniform particle size distribution, does not generate coalescence, and is applicable to industrial production.

The alloy contains, by weight, at least 95% zirconium and from 0.01 to 0.1% sulphur and, optionally, at least one element from the group consisting of the elements tin, iron, chromium, hafnium, niobium, nickel, oxygen and vanadium, the balance of the alloy consisting of inevitable impurities. The sulphur is present in the alloy in the dissolved state, thereby improving the creep strength and in the form of uniformly distributed fine precipitates, thereby improving the corrosion and hydriding resistance. The alloy may be heated by a solution annealing treatment in the β phase followed by a quench or by a soak at a temperature below 950° C. in order to transform it into the α or α+β phase.

A method and apparatus for electrostatic spray deposition (ESD) for fabricating a thin-layer yttria-stabilized zirconia (YSZ) electrolyte on a solid oxide fuel cell (SOFC) anode substrate constructed of nickel-YSZ cermet. By reducing the thickness of the electrolyte, and thereby reducing the cell internal IR drop, an intermediate temperature SOFC (ITSOFC) can operate at 600-800° C. A collar positioned at a distance from a discharge end of a spray nozzle enhances a spray pattern of a precursor including the electrolyte material and thus provides a very thin electrolyte layer.

The invention provides a high-efficient non-corrosive hydrate inhibitor, relating to the technical field of oil-gas hydrate. The hydrate inhibitor is a mixture of an anti-agglomerant and a urea or a calcium nitrate and is used at the pressure of 1.5 to 25 MPa and at the temperature of minus 20 DEG C to 25 DEG C. The hydrate inhibitor overcomes the defects of the prior art, reduces the nucleary, the growth and the coalescence speed of hydrate after being filled in petroleum fluid in production or conveying by mixing at low concentration and has the characteristics of wide application, low cost and no corrosion to pipelines.